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    • 2. 发明申请
    • BATTERY MONITOR
    • 电池监控
    • WO1997001103A1
    • 1997-01-09
    • PCT/NZ1996000060
    • 1996-06-20
    • JONES, Gerald, PatrickPARSONAGE, Peter, Cecil, Joseph
    • JONES, Gerald, Patrick
    • G01R31/36
    • B60L11/1859B60L11/1861B60L2250/16G01R31/006G01R31/3624G01R31/3648G01R31/3668G01R31/3675H01M10/48H02J7/0031H02J7/0047H02J7/1461Y02T10/7016Y02T10/7044Y02T10/705
    • The invention comprises battery monitoring means; generally a circuit (701), for use with a battery (702) which is one of a defined (quantified re volts supplied at known current loads at known discharge levels) type of battery such as the lead-acid batteries used in vehicles. Preferred embodiments monitor at least the battery voltage under load while measuring the drawn current and use stored numerical information in order to determine whether the battery has been discharged down to a predetermined limit; one which generally retains enough charge to perform a defined act such as starting an engine. If the battery is so depleted it is disconnected by switch (716). Additionally the monitor may use temperature measurements. The device is optionally capable of displaying battery charge on an instrument display (704), reconnecting the battery when use is imminent on sensing (712) any change in the load on the bus (703), or initiating a charging procedure.
    • 本发明包括电池监视装置; 通常是与电池(702)一起使用的电路(702),电池(702)是在车辆中使用的铅酸电池类型的电池类型中定义的(在已知放电水平的已知电流负载下提供的量化的电压)之一。 优选实施例至少监测负载下的电池电压,同时测量拉出的电流并使用存储的数字信息,以便确定电池是否已经被放电到预定的极限; 一个通常保持足够的电荷来执行定义的动作,例如起动发动机。 如果电池耗尽,则由开关断开(716)。 此外,显示器可以使用温度测量。 该设备可选地能够在仪表显示器(704)上显示电池电量,当使用即将在即将对总线(703)上的负载进行任何改变的使用即时重新连接电池时,或启动充电程序。
    • 3. 发明申请
    • BATTERY CHARGE INDICATOR
    • 电池充电指示器
    • WO9912044A3
    • 1999-12-23
    • PCT/NZ9800127
    • 1998-08-27
    • BATTERYGUARD LIMITEDPARSONAGE PETER CECIL JOSEPH
    • PARSONAGE PETER CECIL JOSEPH
    • G01R31/36
    • G01R19/16542G01R31/3648G01R31/3668G01R31/3682
    • An automotive battery charge indicator uses an algorithm expressed by fixed component values to determine if the remaining charge in the battery has fallen below a predetermined threshold. A current sensing resistor (8) (having a resistance of the same order of magnitude as the internal resistance of the battery (1) to be monitored), is connected in series with the positive battery terminal (2) of a lead acid battery (1) and the positive side of a non-critical load (4). A percentage of the voltage across the load detected as input (6) is compared by comparator (11) with a dynamic reference voltage at input (5). The dynamic reference voltage is made up of a fixed reference voltage (7) less the voltage drop through current sensing resistor (8). When the percentage of load voltage at (6) is less than the dynamic voltage at (5), the comparator provides a negative output at (12) indicating that the remaining charge in the battery has fallen below the preset threshold value. The output from the comparator can be used to operate an indicator such as an LED or it could be used to initiate circuit shutdown to protect the battery from being discharged excessively.
    • 汽车电池充电指示器使用由固定分量值表示的算法来确定电池中的剩余电量是否已经降低到预定阈值以下。 一个电流检测电阻(8)(具有与要监测的电池(1)的内阻相同数量级的电阻)与铅酸电池的正电池端子(2)串联连接 1)和非关键负载(4)的正侧。 检测为输入(6)的负载两端电压的百分比由比较器(11)与输入(5)处的动态参考电压进行比较。 动态参考电压由固定参考电压(7)减去通过电流感测电阻器(8)的电压降组成。 当(6)处的负载电压的百分比小于(5)处的动态电压时,比较器在(12)处提供负输出,指示电池中的剩余电量已经降至预设的阈值以下。 比较器的输出可用于操作LED等指示灯,也可用于启动电路关闭以保护电池免于过度放电。